Question

Calcium hydroxide is:
 $ A) $ Acidic
 $ B) $ Basic
 $ C) $ Amphoteric
 $ D) $ Neutral

Answer 1

Hint: Ionization of acids yields hydrogen ions, in this manner these mixtures go about as proton donors. Additionally, a few bases like lithium hydroxide, sodium hydroxide also totally separate into their particles in a liquid medium. These bases are named as solid bases.

Complete answer:
An acid or base's strength refers to its degree of ionization. A strong acid will completely ionize in water while a weak acid will only partially ionize. Since there are different degrees of ionization, there are different levels of weakness. Fortunately, there is a simple quantitative way of expressing this. Since the ionization of a weak acid is an equilibrium
Elements on the right side of the periodic table have a higher ionization energy because their valence shell is nearly filled. Elements on the left side of the periodic table have low ionization energies because of their willingness to lose electrons and become cations.
Calcium hydroxide is basic in nature because as the atom gets larger, ionization of the atom decreases and the atom becomes more basic. The more protons in the nucleus, the stronger the attraction of the nucleus to electrons. This stronger attraction makes it more difficult to remove electrons. Within a group, the ionization energy decreases as the size of the atom gets larger.
So, the correct answer is $ (B) $ Basic.

Note:
Aqueous solutions of calcium hydroxide are called lime water and are medium strength bases that react with acids and can attack some metals such as aluminium like amphoteric hydroxide dissolving at high pH while protecting other metals from corrosion such as iron by passivation of their surface.